Tool-head for slotting-machines



' G F. MUTH. TOOL HEAD- FOR SLOTTING MACHINES.

APPLICATION FILED MAR. 1. 1920 Patented Dec. 27,1921,

. 3 sums-411551 1.

I e. F. MUTHI TOOL H'EAD FOR SLOTTING MACHINES.

APPLICATION FILED MAR. 1. 1920.

Patehted Dec. 27, 1921.

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MAW

G. F. MUTH.

TOOL HEAD FORSLOTTING MACHINES.

APPLICATION FILED MAR. I. 1920.

Patented Dec. 2?, 1921.

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GEORGE E. Mom, or PHILADELPHIA, PENNSYLVANIA, assrenon T0. NEwroN MACHINE TOOL wonxs, INconroRArnn, or PHILADELPHIA, PENNSYLVANIA,

A CORPORATION OF PENNSYLVANIA. I

* TOOL-HEAD non SLOTTING-MAGHINES.

Application filed March 1,

To all whom it may concern.

Be it known that I, GEORGE F. MUTH, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Tool-Heads for slotting-Machines, of which the following is a specification.

My invention relates to certain improvements in the construction of tool heads for slotting machines.

One object of the invention is to construct the head so that the tool will be relieved on the upward stroke of the slide.

A further object of the invention is to provide a head which can be turned on the slide so as to cut the front, rear, or either side of the slide. I

In the accompanying drawings:

Figure 1 is a side view. of sufficient of a slotting machine to illustrate my invention;

Fig. 2 is a front view of the tool head and the lower portion of the slide;

Fig. 3 is a longitudinal sectional View on the line 3-3, Fig. 2;

Fig. 4; is a sectional view on the line 4.1, Fig. 3;

Fig. 5 is a sectional view on the line 5-5, Fig. 3; and

Fig. 6 is a sectional View on the line 6-6, Fig. 4. r

1 is sufficient of the base of the machine to illustrate my invention. 2 is a portion of the standard having a slideway 3 for the ram 4, which has a rack 5 meshing with a pinionof the ordinary type, 6 is a work carrying table. 7 is a slide of any usual form mounted on the base and supporting the table. My invention relates particularly to the tool carrying head, which is secured to the lower portion of the ram 4:, which is recessed to receive a block 8, held in place in the recess by a headed screw 9.

10 is a tool carrying head mounted on the under side of the ram and secured thereto, in the present instance, by means of three bolts 11 having heads 12 adapted to the annular undercut channel 13 formed partly by a re cess in the ram 4 and the stepped block 8, shown clearly in Fig. 3. The bolts 11 pass through the upperportion of the tool carrying head 10and into the recess 14, Fig. 5, in the head. In these recesses are washers 15 and nuts 16 so that thehead, while it is free to turn on the ram, is held firmly against I Specification of Letters Patent.

rammed Dec. 27, 1921.

1920. Serial No. 362,592.

the ram and can be locked in position by screwing up the nuts 16. On the head is an annular rib .10 which is adapted to the annular slot, through which the bolt 11 extends.

In order to retain this tool holder yieldingly againstthe under side of the head 10, I recess the head, as at 20, and locate a coiled spring 21in this recess. 22 is a bolt having a head. 23 resting on the spring. The threaded portion 24 of the bolt is screwed into the tool holder 18, as shown clearly in Fig. 3. By this construction, the carrier will yield when the ram is moved upward and will be held rigidly in position when the ram is moved downward. The holder has a perforated extension 25 for the reception of the tool, as shown in Fig. 1, and the tool is clamped to the holder by bolts '26.

'By the above construction, it will. be seen' that the head can be turned on its pivot by loosening the nuts 16 so that it will cut at.

the front of the ram or at either side thereof, in fact at any point within the 860 deg. radius; The tool holder will yield as the tool returns from making the cut sothat the machine can be used for cutting certain surfaces in the work without the necessity of resetting the work as is now necessary.

I claim 1. The combination in a slotting machine, of a ram having an annular undercut slot in its under side; a head resting against the lower end of the ram; bolts having heads adapted to the annular slot and carried by the head so that the head can be clamped to the ram in any position desired; a'tool holder pivoted to the head; and yielding means for holding the tool holder to the head. a

2. The combination ofa ram recessed on its under side and having an annular groove therein; a stepped block mounted inthe recess and forming with the groove in the ram an annular undercut slot; a bolt holding the block in position in the slide; a head fitting against the slide; headed bolts passing- CII through openings in the heed, the heads of the bolts extending into the annular, underout slot, the head being recessed at the bolts for the reception of the nuts; a tool holder pivotally mounted on the head; and yielding means for retaining the holder against the head.

mounted on the underside of the ram; bolts securing the head to the ram; means for 3. The combination of a ram; a head allowing the head to turn on the ram when the bolts areslack; a tool holder pivoted to the head, the head being recessed at the opposite side from the pivot; a spring in the recess; and a headed bolt extending through the spring and screwed into the holder the head of the bolt bearing upon the spring so that the holder is allowed to yield when the tool is returning after making; stout.

GEORGE F. MUTE. 

